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NS:tcpioctl.IPInterfaceInfo |
IPInterfaceInfo (tcpioctl.h) |
The IPInterfaceInfo structure contains information about a specific IP interface, returned by the IOCTL_TCP_QUERY_INFORMATION_EX control code. |
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winprog\ipinterfaceinfo.htm |
winprog |
dc9de369-f739-475c-96f5-e2e058705fe8 |
12/05/2018 |
IPInterfaceInfo, IPInterfaceInfo structure [Windows API], tcpioctl/IPInterfaceInfo, winprog.ipinterfaceinfo |
tcpioctl.h |
Windows |
Windows 2000 Professional [desktop apps only] |
Windows 2000 Server [desktop apps only] |
Windows |
IPInterfaceInfo |
19H1 |
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[This structure may be altered or unavailable in future versions of Windows.]
The IPInterfaceInfo structure contains information about a specific IP interface, returned by the IOCTL_TCP_QUERY_INFORMATION_EX control code.
The types of communication supported on this interface. This member can be one or more of the following values.
| Value | Meaning |
|---|---|
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Point-to-point. |
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Point-to-multipoint. |
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Unidirectional communication. |
The maximum transmission unit: the size, in bytes, of the largest datagram that can be sent and/or received on the interface.
An estimate of the interface's current bandwidth in bits per second. For interfaces that do not vary in bandwidth or for which no accurate estimation can be made, this member contains the nominal bandwidth.
The length, in bytes, of the IP address associated with this interface that is contained in the iii_addr member.
The IP address associated with this interface. In Windows Vista, this is the physical address.
This is a variable-length structure whose size depends on whether the iii_addr member contains an IPv4 or IPv6 address. To allocate a buffer large enough to contain it safely, use the size:
sizeof(IPInterfaceInfo) + MAX_PHYSADDR_SIZE